Mathematics, 29.06.2021 17:10 nataliajaquez02

An instructor has two sections, A and B, in a particular subject. Section A has 18 students while section B has 25 students. On the same examination, although there was no significant difference in the mean grades, section A had a standard deviation, sA of 9 while section B had a standard deviation, sB of 12. Can we conclude at the 0.01 level of significance that the variability of section B is greater than that of A?

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 20.06.2019 18:02, shapeshifter119

6(2x+y)+2(x+4y) how can i solve this

Answers: 1

continue

Mathematics, 21.06.2019 19:30, Animallover100

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Answers: 1

continue

Mathematics, 21.06.2019 20:30, mxwtwo

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

Answers: 1

continue

Mathematics, 21.06.2019 22:00, goodperson21

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Answers: 2

continue

You know the right answer?

An instructor has two sections, A and B, in a particular subject. Section A has 18 students while se...